Найдите произведение: 1 2/13*1 5/8*1 1/7.

\[1\frac{2}{13} \cdot 1\frac{5}{8} \cdot 1\frac{1}{7} = \frac{15 \cdot 13 \cdot 8}{13 \cdot 8 \cdot 7} =\]

\[= \frac{15}{7} = 2\frac{1}{7}\]